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Last Update: 335 AM AST Wed Jul 8 2026

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San Juan, PR Local Forecast Office

25NM WNW San Juan PR

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON AST TODAY THROUGH THIS EVENING...

Today
East winds 10 to 15 knots with gusts up to 25 knots, increasing to 25 to 30 knots. Seas 5 to 7 feet, occasionally to 8 feet. Wave detail: east 6 feet at 7 seconds. Numerous showers with isolated thunderstorms this morning, then scattered showers early this afternoon. Isolated showers late.
Tonight
East winds 20 to 25 knots, diminishing to 10 to 15 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: east 6 feet at 7 seconds.
Thursday
East winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Gusts up to 35 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave detail: east 6 feet at 7 seconds.
Thursday Night
East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Gusts up to 35 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave detail: east 6 feet at 7 seconds.
Friday
East winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Gusts up to 35 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave detail: east 6 feet at 7 seconds.
Friday Night
East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: east 6 feet at 7 seconds.
Saturday
East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet.
Saturday Night
East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet.
Sunday
East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet.
Sunday Night
East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.

winds and seas higher in and near thunderstorms.



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335 AM AST Wed Jul 8 2026
 
 

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